ardupilot/libraries/GCS_MAVLink/include/common/mavlink_msg_statustext.h

// MESSAGE STATUSTEXT PACKING

#define MAVLINK_MSG_ID_STATUSTEXT 254

typedef struct __mavlink_statustext_t
{
 uint8_t severity; ///< Severity of status, 0 = info message, 255 = critical fault
 int8_t text[50]; ///< Status text message, without null termination character
} mavlink_statustext_t;

#define MAVLINK_MSG_ID_STATUSTEXT_LEN 51
#define MAVLINK_MSG_ID_254_LEN 51

#define MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN 50

#define MAVLINK_MESSAGE_INFO_STATUSTEXT { \
	"STATUSTEXT", \
	2, \
	{  { "severity", NULL, MAVLINK_TYPE_UINT8_T, 0, 0, offsetof(mavlink_statustext_t, severity) }, \
         { "text", NULL, MAVLINK_TYPE_INT8_T, 50, 1, offsetof(mavlink_statustext_t, text) }, \
         } \
}


/**
 * @brief Pack a statustext message
 * @param system_id ID of this system
 * @param component_id ID of this component (e.g. 200 for IMU)
 * @param msg The MAVLink message to compress the data into
 *
 * @param severity Severity of status, 0 = info message, 255 = critical fault
 * @param text Status text message, without null termination character
 * @return length of the message in bytes (excluding serial stream start sign)
 */
static inline uint16_t mavlink_msg_statustext_pack(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg,
						       uint8_t severity, const int8_t *text)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
	char buf[51];
	_mav_put_uint8_t(buf, 0, severity);
	_mav_put_int8_t_array(buf, 1, text, 50);
        memcpy(_MAV_PAYLOAD(msg), buf, 51);
#else
	mavlink_statustext_t packet;
	packet.severity = severity;
	memcpy(packet.text, text, sizeof(int8_t)*50);
        memcpy(_MAV_PAYLOAD(msg), &packet, 51);
#endif

	msg->msgid = MAVLINK_MSG_ID_STATUSTEXT;
	return mavlink_finalize_message(msg, system_id, component_id, 51);
}

/**
 * @brief Pack a statustext message on a channel
 * @param system_id ID of this system
 * @param component_id ID of this component (e.g. 200 for IMU)
 * @param chan The MAVLink channel this message was sent over
 * @param msg The MAVLink message to compress the data into
 * @param severity Severity of status, 0 = info message, 255 = critical fault
 * @param text Status text message, without null termination character
 * @return length of the message in bytes (excluding serial stream start sign)
 */
static inline uint16_t mavlink_msg_statustext_pack_chan(uint8_t system_id, uint8_t component_id, uint8_t chan,
							   mavlink_message_t* msg,
						           uint8_t severity,const int8_t *text)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
	char buf[51];
	_mav_put_uint8_t(buf, 0, severity);
	_mav_put_int8_t_array(buf, 1, text, 50);
        memcpy(_MAV_PAYLOAD(msg), buf, 51);
#else
	mavlink_statustext_t packet;
	packet.severity = severity;
	memcpy(packet.text, text, sizeof(int8_t)*50);
        memcpy(_MAV_PAYLOAD(msg), &packet, 51);
#endif

	msg->msgid = MAVLINK_MSG_ID_STATUSTEXT;
	return mavlink_finalize_message_chan(msg, system_id, component_id, chan, 51);
}

/**
 * @brief Encode a statustext struct into a message
 *
 * @param system_id ID of this system
 * @param component_id ID of this component (e.g. 200 for IMU)
 * @param msg The MAVLink message to compress the data into
 * @param statustext C-struct to read the message contents from
 */
static inline uint16_t mavlink_msg_statustext_encode(uint8_t system_id, uint8_t component_id, mavlink_message_t* msg, const mavlink_statustext_t* statustext)
{
	return mavlink_msg_statustext_pack(system_id, component_id, msg, statustext->severity, statustext->text);
}

/**
 * @brief Send a statustext message
 * @param chan MAVLink channel to send the message
 *
 * @param severity Severity of status, 0 = info message, 255 = critical fault
 * @param text Status text message, without null termination character
 */
#ifdef MAVLINK_USE_CONVENIENCE_FUNCTIONS

static inline void mavlink_msg_statustext_send(mavlink_channel_t chan, uint8_t severity, const int8_t *text)
{
#if MAVLINK_NEED_BYTE_SWAP || !MAVLINK_ALIGNED_FIELDS
	char buf[51];
	_mav_put_uint8_t(buf, 0, severity);
	_mav_put_int8_t_array(buf, 1, text, 50);
	_mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_STATUSTEXT, buf, 51);
#else
	mavlink_statustext_t packet;
	packet.severity = severity;
	memcpy(packet.text, text, sizeof(int8_t)*50);
	_mav_finalize_message_chan_send(chan, MAVLINK_MSG_ID_STATUSTEXT, (const char *)&packet, 51);
#endif
}

#endif

// MESSAGE STATUSTEXT UNPACKING


/**
 * @brief Get field severity from statustext message
 *
 * @return Severity of status, 0 = info message, 255 = critical fault
 */
static inline uint8_t mavlink_msg_statustext_get_severity(const mavlink_message_t* msg)
{
	return _MAV_RETURN_uint8_t(msg,  0);
}

/**
 * @brief Get field text from statustext message
 *
 * @return Status text message, without null termination character
 */
static inline uint16_t mavlink_msg_statustext_get_text(const mavlink_message_t* msg, int8_t *text)
{
	return _MAV_RETURN_int8_t_array(msg, text, 50,  1);
}

/**
 * @brief Decode a statustext message into a struct
 *
 * @param msg The message to decode
 * @param statustext C-struct to decode the message contents into
 */
static inline void mavlink_msg_statustext_decode(const mavlink_message_t* msg, mavlink_statustext_t* statustext)
{
#if MAVLINK_NEED_BYTE_SWAP
	statustext->severity = mavlink_msg_statustext_get_severity(msg);
	mavlink_msg_statustext_get_text(msg, statustext->text);
#else
	memcpy(statustext, _MAV_PAYLOAD(msg), 51);
#endif
}